# Lanterns — Place value Puzzle | Mathallery

Source: https://mathallery.com/games/lanterns/

[← All games](https://mathallery.com/games/)

# Lanterns

Place value · 30 levels

Pull the cords until every row shows its number.

## How to play

- Each row spells a number: a lit lantern counts its column's value (8, 4, 2, 1). Lit 8 and 1 make 9.
- Pull a row cord (left) to flip every lantern in that row. Pull a column cord (top) to flip that column in every row.
- Make every row show its target number without using more pulls than the limit.

Flipping a row turns x into (the sum of its column values) − x: 7 − x for 4, 2, 1; 15 − x for 8, 4, 2, 1; 31 − x with a 16s column. Order never matters, and pulling a cord twice undoes it.

[Open Lanterns](https://mathallery.com/#/play/lanterns/1)

Teeter, Tint and Echo Heist are free starters. Other games unlock through earned game choices or permanent packs. Your progress stays in the browser; optional sign-in saves it to your website account.